/** * @file lltextureatlasmanager.h * @brief LLTextureAtlasManager base class. * * $LicenseInfo:firstyear=2002&license=viewergpl$ * * Copyright (c) 2002-2009, Linden Research, Inc. * * Second Life Viewer Source Code * The source code in this file ("Source Code") is provided by Linden Lab * to you under the terms of the GNU General Public License, version 2.0 * ("GPL"), unless you have obtained a separate licensing agreement * ("Other License"), formally executed by you and Linden Lab. Terms of * the GPL can be found in doc/GPL-license.txt in this distribution, or * online at http://secondlife.com/developers/opensource/gplv2 * * There are special exceptions to the terms and conditions of the GPL as * it is applied to this Source Code. View the full text of the exception * in the file doc/FLOSS-exception.txt in this software distribution, or * online at http://secondlife.com/developers/opensource/flossexception * * By copying, modifying or distributing this software, you acknowledge * that you have read and understood your obligations described above, * and agree to abide by those obligations. * * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY, * COMPLETENESS OR PERFORMANCE. * $/LicenseInfo$ */ #ifndef LL_TEXTUREATLASMANAGER_H #define LL_TEXTUREATLASMANAGER_H #include "llmemory.h" class LLSpatialGroup ; class LLViewerTexture ; //just use it as a structure. class LLTextureAtlasSlot : public LLRefCount { public: LLTextureAtlasSlot(LLTextureAtlas* atlasp, LLSpatialGroup* groupp, S16 col, S16 row, F32 xoffset, F32 yoffset, S8 slot_width) ; protected: virtual ~LLTextureAtlasSlot(); public: // //do not allow to change those values // //void setAtlas(LLTextureAtlas* atlasp) ; //void setSlotPos(S16 col, S16 row) ; //void setSlotWidth(S8 width) ; //void setTexCoordOffset(F32 xoffser, F32 yoffset) ; // void setSpatialGroup(LLSpatialGroup* groupp) ; void setTexCoordScale(F32 xscale, F32 yscale) ; void setValid() {mValid = TRUE ;} LLTextureAtlas* getAtlas()const {return mAtlasp;} LLSpatialGroup* getSpatialGroup() const {return mGroupp ;} S16 getSlotCol()const {return mCol;} S16 getSlotRow()const {return mRow;} S8 getSlotWidth()const{return mReservedSlotWidth;} BOOL isValid()const { return mValid;} const LLVector2* getTexCoordOffset()const {return &mTexCoordOffset;} const LLVector2* getTexCoordScale() const {return &mTexCoordScale;} void setUpdatedTime(U32 t) {mUpdatedTime = t;} U32 getUpdatedTime()const {return mUpdatedTime;} private: LLTextureAtlas* mAtlasp; S16 mCol ;//col of the slot S16 mRow ;//row of the slot S8 mReservedSlotWidth ; //slot is a square with each edge length a power-of-two number LLSpatialGroup* mGroupp ; BOOL mValid ; LLVector2 mTexCoordOffset ; LLVector2 mTexCoordScale ; U32 mUpdatedTime ; } ; class LLTextureAtlasManager : public LLSingleton<LLTextureAtlasManager> { private: typedef std::list<LLPointer<LLTextureAtlas> > ll_texture_atlas_list_t ; public: LLTextureAtlasManager(); ~LLTextureAtlasManager(); LLPointer<LLTextureAtlasSlot> reserveAtlasSlot(S32 sub_texture_size, S8 ncomponents, LLSpatialGroup* groupp, LLViewerTexture* imagep) ; void releaseAtlas(LLTextureAtlas* atlasp); BOOL canAddToAtlas(S32 w, S32 h, S8 ncomponents, LLGLenum target) ; private: std::vector<ll_texture_atlas_list_t> mAtlasMap ; std::vector<ll_texture_atlas_list_t> mEmptyAtlasMap ; //delay some empty atlases deletion to avoid possible creation of new atlas immediately. }; #endif